By moving the heavy lifting to the build stage, the resulting JAR can boot in milliseconds rather than seconds. Low Memory Footprint:

For Java ME (Micro Edition) or IoT devices with limited storage, every kilobyte counts. quark.jar provides aggressive optimization flags that can rename classes and inline short methods to reduce RAM usage.

The output is gloriously simple: plain text tables, exit codes for scripting, and zero XML configuration.

If quark.jar is an executable "Fat Jar" generated by Quarkus or Spring Boot, you will also notice directories like BOOT-INF/classes or lib/ containing nested dependencies.

How does quark.jar stack up against the competition?